#B3372B#B3372B

#B3372B is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.9% C 0.162 H 29.3°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#B3372B
RGB	rgb(179, 55, 43)
HSL	hsl(5, 61%, 44%)
HSV	hsv(5, 76%, 70%)
CMYK	cmyk(0%, 69.3%, 76%, 29.8%)
CIE-LAB	lab(41.99, 49.38, 35.66)
CIE-LCH	lch(41.99, 60.91, 35.83°)
OKLab	oklab(51.88% 0.1416 0.0794)
OKLCH	oklch(51.88% 0.162 29.3)
XYZ	xyz(20.3949, 12.4935, 3.6226)
Luminance	0.1249 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3372B #2BA7B3

analogous

#B32B63 #B3372B #B37B2B

triadic

#B3372B #2BB337 #372BB3

tetradic

#B3372B #63B32B #2BA7B3 #7B2BB3

square

#B3372B #63B32B #2BA7B3 #7B2BB3

split-complementary

#B3372B #2BB37B #2B63B3

monochromatic

#501913 #82281F #B3372B #D35448 #DF8279

Accessibility & contrast

On white

6.00

#B3372B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B3372B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3372B

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3372B	#FFFFFF	#000000	##FFFFFF
##B3372B	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5229

Deuteranopia (green-blind)

#7A6D26

Tritanopia (blue-blind)

#C50C35

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b3372b;
/* rgb */ color: rgb(179, 55, 43);
/* oklch */ color: oklch(51.9% 0.162 29.3);

Tailwind

colors: {
  custom: {
    50: '#d27565',
    500: '#b3372b',
    950: '#000000',
  },
}

SCSS

$custom: #b3372b;
$custom-light: #d27565;
$custom-dark: #000000;

JSON

{
  "hex": "#b3372b",
  "rgb": {
    "r": 179,
    "g": 55,
    "b": 43
  },
  "hsl": {
    "h": 5.294,
    "s": 61.261,
    "l": 43.529
  },
  "oklch": {
    "l": 0.51884,
    "c": 0.1623,
    "h": 29.3
  },
  "luminance": 0.12491
}

Semantic roles & 50–950 ramp

primary

#B3372B

secondary

#73C0C7

accent

#D6E443

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B3372B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →